Ch. 13 Vascular Flashcards
Upper extremity occurs ________ than lower extremity (___%)
much less frequently, 5%
What is the most common anatomic variant
high takeoff of radial artery
Where does the high takeoff of radial artery occur
mid to upper arm
What temp should the exam room be and why
warm, vasoconstriction
What are the characteristics of a normal upper extremity waveform
triphasic, sharp systolic peak, brief period of diastolic flow reversal, minimal continued forward flow in diastole
What is the normal PSV range for the subclavian
80-120 cm/s
What are abnormal doppler findings
dampened distal waveforms with loss of end systolic flow reversal
What is an early sign of stenosis with doppler in upper extremity
loss of end-systolic flow reversal
What things can be easily mistaken for a thrombosed artery
In the forearm, the tendon, nerves and muscle fascicles
What vessel can the angle of insonation be difficult to determine
at the origins of the brachiocephalic
Aneurysm is a permanent localized dilation resulting in _____ in diameter of an artery compared to adjacent normal artery
50% increase
When can often be see that is suggestive of aneurismal disease
distal embolism
What is a result from primary raynaud syndrome
pain and color changes (white, blue, red)
In primary raynaud syndrome, anatomically, what appears normal
digital arteries
What is an underlying disease process that is responsible for symptoms of secondary raynaud syndrome
autoimmune disorder (scleroderma)
